Rachor, Kevin and Raab, T. E. and Heitmann, D. and Gerl, C. and Wegscheider, W. (2009) Cyclotron resonance of carbon-doped two-dimensional hole systems: From the magnetic quantum limit to low magnetic fields. PHYSICAL REVIEW B, 79 (12): 125417. ISSN 1098-0121,
Full text not available from this repository. (Request a copy)Abstract
We report on cyclotron resonance (CR) experiments of high-quality C-doped two-dimensional hole systems in GaAs/AlGaAs quantum wells covering the microwave and far-infrared regimes. At high magnetic field B we observe a strong B dependence of the cyclotron mass m(c) which can be reproduced by calculations based on a 4x4 Luttinger Hamiltonian in the axial approximation. At small B one main and up to three secondary CRs are found, which continuously evolve with smooth magnetic-field dependences. This has not been observed and predicted so far. In the regime of the magnetic quantum limit a further CR is observed, which can be attributed to a transition between Landau levels originating from the two different spin-split heavy- and light-hole subbands.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GAAS-(GA,AL)AS HETEROJUNCTIONS; VALENCE BANDS; WELLS; GAAS; DENSITY; GAS; SEMICONDUCTORS; MODES; HETEROSTRUCTURES; SPECTROSCOPY; aluminium compounds; carbon; cyclotron resonance; gallium arsenide; Landau levels; semiconductor quantum wells; two-dimensional electron gas |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Oct 2020 07:22 |
| Last Modified: | 05 Oct 2020 07:22 |
| URI: | https://pred.uni-regensburg.de/id/eprint/29433 |
Actions (login required)
 |
View Item |
